| Titre : | Journal of Avian Biology 34(3) - SEP 2003 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. Lind, Auteur ;
L. Hollen, Auteur ;
E. Smedberg, Auteur ;
U. Svensson, Auteur ;
A. Vallin, Auteur ;
S. Jakobsson, Auteur
When birds arc attacked by aerial predators they should benefit by adjusting their escape to the prevailing attack situation. One important factor likely to affect escape decisions of prey, to our knowledge not previously studied, is the distanc[...]
Article
A. Kato, Auteur ;
Y. Watanuki, Auteur ;
Y. Naito, Auteur
Flight and diving activity of rhinoceros auklets Cerorhinca monocerata breeding on Teuri Island, Japan, were monitored during the summers 1999 and 2000 using miniaturized time-depth and acceleration recorders. Birds made 14.5 dive bouts per day [...]
Article
T. Szep, Auteur ;
A. P. Moller, Auteur ;
J. Vallner, Auteur ;
A. Kovács, Auteur ;
D. Norman, Auteur
We investigated whether trace elements in tail feathers of an insectivorous and long-distance migratory bird species could be used to identify moulting areas and hence migratory pathways. We analysed tail feathers from birds of different age and[...]
Article
J. Wallander, Auteur ;
M. Andersson, Auteur
Reproductive tactics of ringed plovers Charadrius hiaticula were studied at three localities in SW Sweden during five seasons. The usual clutch size is four, but removal experiments showed that females call produce five eggs in succession, with [...]
Article
O. Chastel, Auteur ;
A. Lacroix, Auteur ;
M. Kersten, Auteur
We measured thyroid hormone (T3) levels and energy expenditure of pre-breeding house sparrows Passer domesticus in relation to the timing of breeding and reproductive success. The onset of reproduction was synchronised in two waves, separated by[...]
Article
P. L. Tubaro, Auteur
To transmit acrodynamic forces to the body, tail feathers should be stiff to resist lift forces with minimum deformation. Because aerodynamic theory predicts that such feathers do not produce lift forces beyond the point of the maximum continuum[...]
Article
S. Rytkonen, Auteur ;
I. Krams, Auteur
Great tits Parus major have generally much poorer breeding success in northern Finland than in mid- and western Europe. The aim of this study is to find out whether the poor success is linked to foraging behaviour. This was studied by monitoring[...]
Article
S. M. Doucet, Auteur ;
R. Montgomerie, Auteur
We investigated whether variation in structural plumage coloration in satin bower-birds, Ptilonorhynchus violaceus, could reveal the intensity of infection from parasites, as predicted from models of parasite-mediated sexual selection (PMSS). To[...]
Article
K. E. Arnold, Auteur ;
R. Griffiths, Auteur
In the jackdaw Corvus monedula, eggs hatch asynchronously with the youngest Chicks in the brood often starving to death. So far, it is unknown whether there are sex differences in Vulnerability to starvation. Adult females are smaller than males[...]
Article
M. Miyazaki, Auteur ;
J. R. Waas, Auteur
We examined the relationship between acoustic properties of male advertising calls, male body size and female responses in little penguins Euelyptula minor. Larger males produced calls of lower frequency. Playback experiments indicated that fema[...]
Article
R. L. Boulton, Auteur ;
P. Cassey, Auteur ;
C. Schipper, Auteur ;
M. F. Clarke, Auteur
When choosing subsequent nest sites, species that produce Multiple broods in a single breeding season have the option of dispersing from a site where they previously suffered depredation, i.e., a predator-avoidance tactic. In our study on yellow[...]
Article
D. B. Lank, Auteur ;
R. C. Ydenberg, Auteur
Article
A. Roulin, Auteur
Geographic variation in sexually selected traits is commonly attributed to geographic variation in the net benefit accrued from bearing such traits. Although natural and sexual selection are potentially important in shaping geographic variation.[...]
